Similar to when they started changing all the shotgun shell case colours... Change for change sake ain't good

Seriously though, how much of safety issue is it really? Its not like putting the full nitro 570grain loads in the black powder boxes. Anyway, how many people do you know that don't check and double check what they are stuffing into a fine double ? Or any rifle for that matter. If someone just looks at the colour of the box then they deserve their darwin award when it all goes pear shaped!